Swivel barstool



FIG. 1 is a perspective view showing the front side, left side, and top of the ornamental design;

FIG. 2 is a front elevational view of the same, which is the mirror image of the left side elevational view;

FIG. 3 is a back view of the same;

FIG. 4 is a right side elevational view of the same;

FIG. 5 is a left side elevational view of the same;

FIG. 6 is a top plan view of the same; and,

FIG. 7 is an underside view of the same. 

The ornamental design for a swivel barstool, as shown and described. 